The first is 0, second is 1, third is 1, fourth is 2, fifth is 3, sixth is 5, seventh is 8, eighth is 13, ninth is 21, tenth is 34,eleventh is 55, twelfth is 89, thirteenth is 144, fourteenth is 233, fifteenth is 377.
The first 85 Fibonacci numbers are:011235813213455891442333776109871,5972,5844,1816,76510,94617,71128,65746,36875,025121,393196,418317,811514,229832,0401,346,2692,178,3093,524,5785,702,8879,227,46514,930,35224,157,81739,088,16963,245,986102,334,155165,580,141267,914,296433,494,437701,408,7331,134,903,1701,836,311,9032,971,215,0734,807,526,9767,778,742,04912,586,269,02520,365,011,07432,951,280,09953,316,291,17386,267,571,272139,583,862,445225,851,433,717365,435,296,162591,286,729,879956,722,026,0411,548,008,755,9202,504,730,781,9614,052,739,537,8816,557,470,319,84210,610,209,857,72317,167,680,177,56527,777,890,035,28844,945,570,212,85372,723,460,248,141117,669,030,460,994190,392,490,709,135308,061,521,170,129498,454,011,879,264806,515,533,049,3931,304,969,544,928,6572,111,485,077,978,0503,416,454,622,906,7075,527,939,700,884,7578,944,394,323,791,46414,472,334,024,676,22123,416,728,348,467,68537,889,062,373,143,90661,305,790,721,611,59199,194,853,094,755,497160,500,643,816,367,088
the first seven Fibonacci numbers are 1,1,2,3,5,8,13. 13 is a Fibonacci number.
Leonardo Fibonacci first recorded his sequence in his book Liber Abaci, which was published in 1202.
1, 1 and 2
If you start with 1, the common factors are 1 and 3. If you start with zero, as Fibonacci did, the common factor is 1.
Leonardo Fibonacci
0 (zero). It is defined to be positive, and is not in the set of Fibonacci numbers.
They will always follow some Fibonacci sequence. If P and Q are any two numbers, then they belong to the Fibonacci sequence with the first two numbers as P and (Q-P).
He was not the first to discover it. Fibonacci lived around 1200 AD. He might have discovered it independently but it was known in India from 200 BC.
The first 11 Fibonacci numbers are 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, and 55.
1, 1 and 2
20 of them.